Fasteners and fastening methods introduction fastener types. Introduction a fastener is a hardware device that mechanically joins or affixes two or more objects together. Before we get into the different types of screws, lets. Threaded fasteners such as bolts, screws, studs, setscrews, etc. Fasteners come in many varieties of drive styles, each having different. Our mission at american fastener is to serve the needs of professional customers in the construction and industrial trades. This head style allows for a wrench to grip more easily onto the head of the bolt.
The 28page guide covers the anatomy of bolts and screws, different head types, drive types, thread count and pitch, and how to measure diameter and length. Research conducted during the 1980s resulted in lateral. In this article, you will learn about the types of nuts and bolts. When this type of fastener is used, the parts will never be disassembled. Incredibly useful, and free, guide to fasteners make. Unf thread has a larger minor diameter than unc thread, which gives unf fasteners slightly higher loadcarrying in shear and better torquelocking capabilities than unc fasteners of the same material and outside diameter. Required fields afghanistan aland islands albania algeria american samoa. Fasteners can be used in other panel materials not listed here if specified hardness limits are met.
Common fasteners include screws, bolts, nuts and rivets. Thus, countersunk fasteners are measured overall and noncountersunk fasteners are measured from under the head. Selfclinching nuts are installed by placing them in properly sized holes in sheets and. A wide variety of types of fasteners options are available to you, such as gb.
They are the preferred screw for attaching clipless nail hem metal roof panels. Fasteners are defined as hardware that can be easily installed and removed with hand or power tools. Thus the same fastener may be termed a bolt or a screw. A fastener is a hardware device that is used for creating nonpermanent joints. The variety of fasteners, broadly divided into the following categories. Learn more about our innovative customized inventory management solutions. To make it easy for you, weve compiled the data below as a guide for figuring out what each fastener is called. Topics summary 1 fasteners 2 screw thread definitions 3 types of thread 4 manufacturing screw threads 5 drawing screw threads 6 unified threads. The threading, the applied load on the fastener, the stiffness of the fastener, and the number of. Metal fasteners must be strong to bear significant loads. Types of washers and their application smlease design.
Fasteners for use in stainless steel sheets installs into stainless steel sheets as thin as. These are the fasteners which create their own threads while fastening into the material. Corrosion resistance similar to 300 series stainless steel. The largest distributor of fasteners in north america is the fastenal company. Ulp screws are engineered to attach standing seam roof clips to wood. When selecting a fastener for industrial applications, it is important to consider a variety of factors. We do not guarantee its completeness or validity and assume no. Chart showing 60 types of screws, screw heads, bolts, nuts and washers chart. Types of fasteners explaining 10 different types of fasteners and their uses.
Socket screwsthese types of fasteners are typically used in applications that dont provide sufficient clearance for conventional fastening methods such as a wrench. Whether your application requires wedge anchors, hex nut sleeve anchors, or dropin anchors, american fastener can consult on your project and provide a quote for a custom part order. Fasteners are used for fastening and securing materials such as wood, metal, plastic, or concrete. Following types of locking washers are available in market. Machine screws with a thread cutting self tapping point. Types of fasteners by dimension or material parker. Identification charts for different types of fasteners. Lock washers secure fasteners that have a tendency to rotate or loose friction. They include nuts and bolts, threaded rods, structural bolts, machine screws, wedge anchors, washers, rivets, and more in a variety of types and sizes, including metric and inch. Understanding the different types of automotive fasteners.
They typically have a head, and a shank with a helical threads. There are 5,262 suppliers who sells types of fasteners on, mainly located in asia. This moisture can seep into your fasteners, resulting in rust and corrosion on fasteners that are left unprotected. We provide comprehensive solutions to problems our clients face everyday. Fasteners can be used to close a container of a box or an envelope, or they may involve keeping together the sides of an opening of flexible material, attaching a lid to a container, etc. Length length for most types of fasteners, the diameter is measured on the outside of the threads. Perhaps one of the most important things about fasteners, is fastening them. In many cases they can be manufactured by powder metallurgical or casting techniques.
In all cases for use in sheet hardness information is shown in chart on page 9. Finding the right type of screw head for your project when there are hundreds of combinations of the drive type and head shape can be confusing, especially for beginning diyers. Screws with threads for use with a nut or tapped hole. This guide provides an explanation of the types of screws best suited for your outdoor projects, including galvanized nails, galvanized screws and more.
Recommended for use in stainless steel sheets hrb 90 hb 192 or less. Mechanical drawing mdp 115 firstyear, mechanical engineering dept. Conversions, hardness, thread pitch, tensile strength. Wood screws wood screws are used primarily to attach wood to wood. From our smartphone to sydney harbour bride, everything around us is held together with fasteners and fixings. Square head bolts are similar to hex cap screws but with a 4sided head. As they are readily available and relatively inexpensive they are also commonly used to attach a variety of nonwood objects to wood eg hinges, hardware, locks. Call parker fasteners at 6239255998 today for information about the different types of fasteners we offer by dimension or material as well as by quantity. Reduced outer dimensions and thinner sheet capabilities compared to sp nut thread sizes.
Always refer to project specifications and consult an engineer to ensure that your application is appropriate. The shank is threaded at the tail end for a sufficient length. They can be made from metals, plastics or composites. Examples of fastener specification for the various fastener types are given later in. Com fastener technical data and charts section important disclaimer all of the information provided in this section has been assembled with concern for accuracy. Fasteners threaded, nonthreaded automotive fasteners. If youre working with steel, plaster, drywall, wood, brick or concrete, we have a fastening solution for you. Identification charts for bolt and screw different types of fasteners, head styles in fasteners, drive types in fasteners, washer types in fasteners and nut types in fasteners. The majority of the document is fullsize layover reproductions of common and not so common fasteners so that you can size the bolts you have by eyeballing them on over the guide. Iron is a constituent of many types of metal fasteners, although titanium increasingly is coming into use in applications where strength must be balanced against light weight.
The first video in our series on quarterturn fasteners, also known as dzus fasteners provides insight of available panel fastener styles, sizes, uses and how to match quarterturn fasteners with the correct size dzus springs and mounting hardware. They have an aggressive thread profile designed to maximize the clamping force necessary to form strong joints in wood. Types of fasteners a machine or a structure is made of a large number of parts and they need be joined suitably for the machine to operate satisfactorily. Forces and moments, due to the response of the whole structure to design loads, are resisted by the connection through shear and tension forces induced by the individual fasteners. The reader is encouraged to gather, study, and scrutinize manufacturer literature regarding specialty fasteners, connectors, and tools that meet a wide range of connection needs. The variety of fasteners now available to us when we sew is marvelous. Fastener categories fastener type chart wood screws machine screws thread cutting machine screws sheet metal screws self drilling sms screws with a smooth shank and tapered point for use in wood. We are a leading provider of anchor fasteners and carry all the types listed below. The main modes of failure for different types of fasteners are presented briefly in section 4. Also referred to as an allen bolt, socket screws normally have a cylindrical head diameter of 1. It prevents fasteners loosening by preventing unscrewing rotation. Nails the nail has been around for thousands of years. They are used in both permanent or removable joints.